Oval|Natural|GIA

0.51ct J SI1 Oval Natural Diamond

EX • J/SI1 • GIA 1518159213

Certificate GIA 1518159213

Diamond specifications and retailer prices

From $615 USD
As of November 5, 2026
Save $75 USD (11%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $690 USD at Jared · As of November 6, 2026
View at Jared

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518159213. Listed at 4 retailers as of November 5, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1518159213
Dimensions6.92 × 4.30 × 2.72 mm
L/W Ratio1.61
Girdle conditionFaceted
Top View
6.92 mm4.30 mm0.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518159213
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $690 USD|Low: $560 USD|High: $898 USD|Avg: $736 USD|-17.9%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 26, 2026
Retailer 5$560 USD
Retailer 2$615 USD
Retailer 3$670 USD
Retailer 4$670 USD
Jared$690 USD
Retailer 6$898 USD

14 data points across 6 retailers

4 retailers$615 USD to $690 USD

B+
Cheapest Retailer
-
$615 USD
B
Retailer 2
-
$670 USD
View
B
Retailer 3
-
$670 USD
View
Most Expensive
B
Jared
153298081 · Nov 6
$690 USD
View
3 more retailers have this diamond
Prices start from $615 USDSave up to $75 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.51ct Oval
$615 USD